Pharmacognosy l b. Pharm 4th sem ll unit 1st ll lecture 4 ll Classification of durg ll Alphabetical

Pharmacognosy l b. Pharm 4th sem ll unit 1st ll lecture 4 ll Classification of durg ll Alphabetical Classification Morphological classification Chemical Classified



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Unit-I
Introduction to Pharmacognosy:
Definition, history, scope and development of Pharmacognosy.
Sources of Drugs – Plants, Animals, Marine & Tissue culture.
Organized drugs, unorganized drugs (dried latex, dried juices, dried extracts, gums and
mucilage, oleoresins and oleo- gum -resins).
Classification of drugs:
Alphabetical, morphological, taxonomical, chemical, pharmacological, chemo and sero
taxonomical classification of drugs.
Quality control of Drugs of Natural Origin:
Adulteration of drugs of natural origin. Evaluation by organoleptic, microscopic,
physical, chemical and biological methods and properties.
Quantitative microscopy of crude drugs including lycopodium spore method, leaf
constant, camera lucida and diagrams of microscopic objects to scale with camera lucida.

Unit-II
Cultivation, Collection, Processing and storage of drugs of natural origin: Cultivation
and Collection of drugs of natural origin. Factors influencing cultivation of medicinal
plants. Plant hormones and their applications.
Polyploidy, mutation and hybridization with reference to medicinal plants.
Conservation of medicinal plants.

Unit-III
Plant tissue culture:
Historical development of plant tissue culture, types of cultures, Nutritional requirements, growth and their maintenance.
Applications of plant tissue culture in pharmacognosy.
Edible vaccines.
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